hutchins



(No Model.) 2 Sheets-Sheet 2.

G. P. HUTOHINS.

. LOOM.

No. 413,369. Patented Oct. 22, 1889.

Fig.6.

W I George Ell u tchizw N. PETERS Phom'Lithagnpher. Waihlngion. Dv C.

, UNITED STATES PATENT OFFICE.

GEORGE F. HUTCHINS, OF IVORCESTER, MASSACHUSETTS, ASSIGNOR TO THEKNOWLES LOOM WORKS, OF SAME PLACE.

LOOM.

SPECIFICATION forming part of Letters Patent No. 413,369, dated October22, 1889.

Application filed March 25, I889. Serial No. 304,631. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE F. HUTCHINS, a citizen of theUnited States,residingat Worcester, in the county of Worcester, and State ofMassachusetts, have invented certain new and useful Improvements inLooms; and I do hereby declare that the following is a full, clear, andexact description thereof, which, in connection with the drawings makinga part of this specification, will enable others skilled in the art towhich my invention belongs to make and use the same.

My invention relates to looms, and more particularly to mechanism foroperating dropbox-pattern indicators in looms; and the object of myinvention is to provide means by which certain bars of the box-patternindicators may be repeated without constructing successive similar bars,and at the same time to so connect the box-pattern mechanism with theharness-pattern mechanism that the two will not be thrown out of timewith each other when the harness-pattern mechanism is reversed in theoperation of picking out imperfect work or otherwise. The boxpatternmechanism consists of two sets of indicators a main and auxiliaryset-each driven by a pin-Wheel and a star-wheel, and each pinwheelfitted to be slid into or out of engagement with its respectivestar-wheel, according to indicators,moved by the opposite starwheel, ina manner similar to that described in United States Patent No. 396,057,of J anuary 8, 1889.

I carry out my invention by driving the boxmechanism pin-wheel shaftfrom the harnesspattern-indicator shaft or its driving mechanism in amanner which will be hereinafter fully described, so that when theharness-indicators are reversed the box-pattern mechanism is reversed.

- Referring to the drawings, Figure 1 is a side View of the workingparts of my improved mechanism detached. Fig. 2 is an end view of someof the parts shown in Fig. 1, looking in the direction of arrow or, samefigure. Fig. 3 is an opposite end view of some of the parts detached,looking in the direction of the arrow I), Fig. 1. Fig. 4 is a section online X, Fig. 3,1ooking in the direction of'arrow 0, same figure. Fig. 5is a detail of the reverse key shown in Figs. 3 and 4, and Fig. 6 is acentral longitudinal section. of the shaft 3 and parts mounted thereon.

In the accompanying drawings, 1 represents 5 5 the harness patternbarrel provided with notched flanges 2 to carry indicators (not shown)made up of chain-bars, links, and rolls of the ordinary construction.The barrel 1 is fast upon shaft 3, and upon the end of shaft 3 issecured a gear-Wheel 4t, driven by a set of reverse gears in theordinary manner in the well-known Knowles loom, and as set forth inUnited States Patent No. 134,992.

Loose on the end of the shaft 5, Figs. 1 and 4:, through which power isapplied, are a pair of gears 6 and 7, which are splined to receive theend of reverse key 8, (see Figs. 4: and 5,) seated in a spline in theshaft 5. The stem 9 of the reverse key 8 is fitted flush with thesurface of the shaft, the projection 10 being fitted to engage thespline in the gears, either of which may be driven with the shaft 5,according as the key 8 is pushed in to engage gear 7 or pulled out toengage gear 6, the gear which is out of engagement with the key beingloose upon the shaft.

The gears 6 and '7 are confined upon the shaft 5 laterally by the flange11 integral with the shaft and the collar 12 fast upon the outer end ofthe shaft. (See Fig. 4..) Coiled partially around the collar 12 is aflat spring 13, fastened to the collar at one end and free at the other.To the free end of the spring 13 is secured a pin 14, which projectsthrough a 8 5 slot in the collar 12, and is pressed by the tension ofthe spring 13 into notches 9' in the face of the stem 9 of the key 8.The notches 9 are so placed as to hold the key 8 in proper position forengagement with the respective o gears 6 and 7. To avoid the possibilityof both gears being engaged at the same time by the key 8, andconsequent damage to some of the parts of the mechanism should power beapplied, the gears 6 and 7 are chambered 5 to the depth of the spline attheir adjoining faces for a length equal to the length of the projection10 on the stem of key 8, so that in sliding the key 8 it leaves thespline of one gear when it enters that of the other. Mounted 10o upon astud 15 is a gear 16, which meshes with gear 7 of the driving-shaft 5,and which i is fast to the hub of a second gear 17, which is loose uponthe stud 15. (See Fig. 4.) Gears 7 and 16 are enough larger than 6 and17, so that the teeth of the latter clear each other when 7 and 16 areproperly meshed.

The stud and shaft 5 are so situated with reference to shaft 3 thatgears '6 and 17 are both in mesh with gear 4. Gears 7 and 16 are of thesame size, and gears 6 and 17 are of the same size, and so proportionedto gear 4 thatone complete revolution of gear 6 or gear 17 turns shaft3through the angular space between two contiguous notches in theharnesspattern barrel-flanges 2. When the key 8 is pushed intoengagement with gear 7, the har ness-pattern barrel 1 is driventhrough'the intermediate gears 16 and 17 in its normal direction, withthe 100111 running forward. When the key 8 is pulled out into engagementwith gear 6, the harness-pattern barrel is driven directly through gear6 in the reverse direction. This construction is used on said Knowlesloom, before referred to, for the reasonthat in said loom theharness-acting mechanism cannot be turned backward, the object being toreverse the harness-pattern indicators, while the loom or itsharness-actuating mechanism is turned in the process of picking outimperfect work, &c. v

In applying my improvements to said Knowles loom, I have found itconvenient to gear my box-mechanism pin-whee]. shaft to reverse gear 7,which I do by putting gear 18, of the same size as gear 7 and fast uponthe end of pin-wheel shaft 19, in mesh with gear 7. Shaft 19 projectsfor some distance beyond the harness-pattern barrel 1. (See Fig. 1.)Near the opposite end of shaft 19 from gear'18 is mounted a pin-wheel20, free to slide upon the shaft, but compelled to rotate in unison withit by means of the feather 21 set in the shaft. gage a star-wheel 22,integral with sleeve 23, which is mounted loosely upon a continuation ofharness-indicator shaft 3, and which is confined laterally on the shaftby a shoulder 24 and a collar 25, fastened on the end of the shaft 3.(See Fig. 1.) Fast upon the end of sleeve 23, which adjoins shoulder 24,is the main pattern-barrel 26 of the box mechanism, provided withnotched flanges 26 to carry indicators, made up of chain-bars 60, rolls61, and links (not shown) similar to those employed in theharness-pattern indicator, and of ordinary construction. Pivoted on astud 27 above and at the rear of main box patternbarrel 26, is a lever28, provided with a foot 29, adapted to be engaged by the mainpattern-indicators. A link 31 connects the outer end of lever 28 witharm 30 of a bell-crank lever 30 32, pivoted on a stud 63 below shaft 19.Arm 32 of the bell crank lever 30 32 is forked about the hub 33 of apin-wheel 34, which is mounted upon shaft 19, similarly to pin-wheel 20.Resting in the fork of arm 32 is a yoke 35, which is fitted loosely inthe groove 36 in the pin-wheel hub 33. Pin-wheel Pin-wheel 20 is fittedto en- 34 is fitted to engage a star-wheel 37, integral with a sleeve38, which is mounted loosely upon sleeve 23, and which is confinedlaterally by flange 39 integral with sleeve 23 and a collar 40 fastenedupon said sleeve. Sleeve 38 carries the notched flanges 41 of theauxiliary pattern-barrel 41 of the box mechanism, over which, on stud27, is pivoted a lever 42, similar to lever 28, and provided with a foot43, adapted to be engaged by auxiliary pattern-indicators. A link 44connects the outer end of lever 42 with arm 45 of a bellcrank lever 4546, pivoted on a stud 51 below shaft 19. Arm 46 of the bell-crank lever45 46 is forked about hub 47 of pin-wheel 20, and carries a'yoke 48,fitted loosely in the groove 49 in hub 47. A spring 50 is coiled aboutthe shank of stud 51, one end of which is fast in a collar 52, fastenedby set-screw 53 to stud 51, and the other end of which engages arm 46 ofthe bell-crank lever 45 46. The spring 50 is of sufficient strength, andits tension is so adjusted, by turning collar 52 on the stud 51, thatwhen no indicator-roll is under the foot 43, the spring 50 slides thepin-Wheel 20 on shaft 19 into engagement with star-wheel 22. Pin-wheel34 is slid on shaft 19 out of engagement with its star-wheel 37 by asimilar spring coiled on the stud 63 of bell-crank lever 30 32when noindicatorroll is under foot 29 of lever 28. The arms of the bell-cranklevers and the levers 28 and 42 are so proportioned to the distancethrough which the levers are moved, by lifting the feet 29 and 43 fromresting on a bar to rest-- ing on a roll, that such motion slides thepinwheels on their driving-shaft the right distance to be properly in orout of engagement with their star-wheels.

The indicators for the box-shifting mechanism are placed on the samebars with the pin-wheel indicators on the main pattern-barrel of the boxmechanism, and the levers 53 for transmitting the indications to theboxshifting mechanism are pivoted on the same stud 27 with lever 28.Depending from levers 53 are links 54, (shown broken off,) with whichthe levers 53 are connected to the boxshifting mechanism. 7 (Not shownand of ordin ary construction.)

The pin-Wheels 20 and 34 are so set 011 the feather 21 that theauxiliary pin-wheel 34 has completed the action on its star-wheel 37when pin-wheel 20 begins to act on its starwheel 22, both actionsoccupying something less than a complete revolution of pin-wheel shaft19.

The pin-wheels and star-wheels are so proportioned that one movementthereof turns the pattern-barrels through the angular space between twocontiguous notches.

The operation of the box-pattern mechanism is as follows: Figs. 1 and 2represent the main pattern-barrel 26 as in engagement to be actuated andthe auxiliary pattern-barrel 41 as at rest. Suppose the action of pinwheel 20, which is just beginning, brings up a pattern- IIO bar which itis desired to -repeat. A'roll on the bar lifts lever 28, which, throughlink 31 and bell-crank lever 30 32, slides pin-wheel 34 into engagementwith its star-wheel" 37. On the succeeding revolution star-wheel 37 andthe auxiliarypattern-barrel 41 will be turned one space, bringing a rollunder lever 42, which, through link 44 and bell-crank lever 45 46,slides pin-wheel 20 out of engagement with its star-wheel 22, so thatthe revolution is completed without moving the main. pattern-barrel 26.The main pattern-barrel'26 will continue to rest and the auxiliarypattern-barrel to run as long as each succeeding action of the auxiliarypattern-surface pin- Wheel 34 brings up a roll underlever42. The

desired number of restshaving been reached, an empty bar is presentedunder lever 42,

which allows spring to slide the pin-Wheel 20 into engagement with itsstar-wheel 22 in season to turnthe main pattern-barrel 26 on the samerevolution, when the parts are returned to the position shown in thedrawings, and the operation may be repeated.

When on the said Knowles loom it is desired to turn the harness-patternindicators backward in the operation of picking out imperfect work or offinding the pick, the reverse key S is pulled out, reversing the motionof gear 4 on the harness-pattern shaft 3, and also that of gear 18 andpin-wheel shaft 19, so that the box-mechanism indicators, with noattention whatsoever from the operator, are always kept in time with theharness-indicators, no matter which way or for how many picks theharness-pattern mechanism is turned.

If the box-pattern mechanism were driven independently of theharness-pattern mech anism and it were left to-the operator to keepcount of the number of pattern-bars reversed, or even to reverseindependently the box-pat tern mechanism whenever the harness-patternmechanism was reversed, the operator would easily get confused and getthe two pattern mechanisms out of time with each other, thus putting thewrong 'filling in the shed.

Instead of connecting-gears 18 and 7 on the said Knowles loom, as shownin Fig, 3, I could connect gears 18 and 4 with equal facility; butsometimes on said loom the gear'4 is replaced by a star-wheel similar tostarwheels 20 and 34, and its pin-Wheelis driven by the set of reversegears, as shown by my Patent No. 399,328.

In any loom I could drive the pin-wheel shaft properly by gearing itdirectly to the harness-pattern shaft, in such proportion that therevolution of the harness-pattern shaft through the angular spacebetween two contiguous bars would drive the pin-wheel shaft through acomplete revolution, as shown by dotted lines 55, Fig. 1. c The motionis somewhat easier geared from the reverse pinions, and on said Knowlesloom I prefer that construction.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is v 1. Ina loom, the combination, with thehar-, ness-pattern mechanism, of the repeating box-pattern mechanismdriven from theha'is ness-pattern mechanism, and consisting of the mainand auxiliary star-wheels, sleeves, andpattern-barrels, pin-wheels,pin-wheel-op-l crating levers, lever-retracting springs,connecting-links, and indicator-levers, substan- V tially as and for thepurpose stated; a

2. In a loom, the main and auxiliary boxsleeves and pattern-barrels,pin-wheels, pinwheel-operating levers, pin-wheel lever-retractingsprings, connecting-links, and indicator-levers, so arranged thatindications on the main and auxiliary box-pattern indicatorsreciprocally control the times of action of the opposite pin-wheels upontheir respective star-wheels, in combination with thepinwheel shaft, itsgear, the reverse gearsof the harness-pattern mechanism, and shaft,substahtially as described, and for the purpose 'set forth.

3. In a loom, the main and auxiliary box:

pattern indicators, star-wheels, star-wheel 8o pattern indicators,star-wheels, star-wheel,

sleeves and pattern-barrels, pin-wheels, pi iwheel-operating levers,pin-wheel-leverretracting springs, connecting-links, and indi- GEORGE F.HU'roHINs;

Witnesses:

J our? 0. DEWEY, HENRY H. Yomve.

